Seborrheic dermatitis is a red, swollen, and scaly rash on the skin. The skin may also be itchy. It is common on the scalp, ears, eyebrows, face, eyelids, chest, back, armpits, and genitals.
Dandruff is a type of seborrheic dermatitis where there is a scaling of the skin on the scalp.
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The exact cause is not known. Common skin yeast organisms or genetics may play a role.
This problem is more common in men. Other things that may raise the risk are:
Problems may be mild to severe. Symptoms may also come and go over time.
The skin may have:
Newborns may have a thick, yellow, crusted scalp rash known as cradle cap.
The doctor will ask about your symptoms and health history. A physical exam will be done. It will focus on the rash. This is often enough to make the diagnosis. You may need to see a doctor who treats skin problems.
There is no cure. The rash may get better on its own in children. Baby shampoo, mineral oil, and anti-fungal shampoos can help.
In others, the goal of treatment is to manage symptoms. Choices are:
There are no known guidelines to prevent this health problem.
American Academy of Dermatology
Family Doctor—American Academy of Family Physicians
Canadian Dermatology Association
Ijaz N, Fitzgerald D. Seborrhoeic dermatitis. Br J Hosp Med (Lond). 2017 Jun 2;78(6):C88-C91.
Seborrheic dermatitis: overview. American Academy of Dermatology website. Available at: https://www.aad.org/public/diseases/scaly-skin/seborrheic-dermatitis. Accessed March 23, 2021.
Seborrheic dermatitis in children and adults. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/seborrheic-dermatitis-in-children-and-adults. Accessed March 23, 2021.
Seborrheic dermatitis in infants. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/seborrheic-dermatitis-in-infants. Accessed March 23, 2021.
3/12/2018 DynaMed Systematic Literature Surveillance https://www.dynamed.com/condition/seborrheic-dermatitis-in-children-and-adults: Karakadze MA, Hirt PA, et al. The genetic basis of seborrhoeic dermatitis: a review. J Eur Acad Dermatol Venereol. 2017 Nov 20.
Last reviewed December 2020 by EBSCO Medical Review Board Daniel A. Ostrovsky, MD Last Updated: 03/23/2021